Donald Trump returned Tuesday to the civil fraud trial that imperils his real estate empire, watching and deploring the case as an employee and an outside appraiser testified that his company essentially put a thumb on the scale when sizing up his properties’ value.

Incensed by a case that disputes his net worth and could strip him of such signature holdings as Trump Tower, the former president is due to testify later in the trial. But he chose to attend the first three days and came back Tuesday to observe — and to protest his treatment to the news cameras waiting outside the Manhattan courtroom.

Star witness Michael Cohen, a onetime Trump fixer now turned foe, postponed his scheduled testimony because of a health problem.

Instead, Trump company accountant Donna Kidder testified that she was told to make some assumptions favorable to the firm on internal financial spreadsheets. Outside appraiser Doug Larson said he didn’t suggest or condone a former Trump Organization comptroller’s methods of valuing properties.

“It doesn’t make sense,” Larson said of the way the ex-controller reached a $287.6 million value for a prominent Trump-owned retail space in 2013.

Trump, outside court, reiterated his insistence that he’s done nothing wrong and that New York Attorney General Letitia James’ lawsuit is a political vendetta designed to drag down his 2024 presidential campaign as he leads the Republican field.

“We built a great company — a lot of cash, it’s got a lot of great assets, some of the greatest real estate assets anywhere in the world,” Trump said outside the courtroom. He dismissed the case as “a disgrace,” the legal system as “corrupt” and the Democratic attorney general as a “radical lunatic.”

James’ lawsuit alleges that Trump and his company deceived banks, insurers and others by massively overvaluing his assets and inflating his net worth on his financial statements.